Home / 105,588.75-145,716.11-57,842.10

Finding the Fourth Proportional to 105,588.75, 145,716.11 and 57,842.10

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Solution

The fourth proportional to 105,588.75, 145,716.11 and 57,842.10 is: 79,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,588.75 : 145,716.11 = 57,842.10 : x
  2. Step 2: Convert to fraction form
    105,588.75/145,716.11 = 57,842.10/x
  3. Step 3: Cross multiply
    105,588.75x = 145,716.11 × 57,842.10
  4. Step 4: Simplify right side
    105,588.75x = 8,428,526,059.29
  5. Step 5: Solve for x
    x = 8,428,526,059.29/105,588.75
  6. Step 6: Final answer
    x = 79,824.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.